128800692107 has 4 divisors (see below), whose sum is σ = 129468053400. Its totient is φ = 128133330816.

The previous prime is 128800692091. The next prime is 128800692157. The reversal of 128800692107 is 701296008821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 701296008821 = 1549 ⋅452741129.

It is a cyclic number.

It is not a de Polignac number, because 128800692107 - 2⁴ = 128800692091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128800692157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 333680357 + ... + 333680742.

It is an arithmetic number, because the mean of its divisors is an integer number (32367013350).

Almost surely, 2^128800692107 is an apocalyptic number.

128800692107 is a deficient number, since it is larger than the sum of its proper divisors (667361293).

128800692107 is an equidigital number, since it uses as much as digits as its factorization.

128800692107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667361292.

The product of its (nonzero) digits is 96768, while the sum is 44.

The spelling of 128800692107 in words is "one hundred twenty-eight billion, eight hundred million, six hundred ninety-two thousand, one hundred seven".